42111313 has 2 divisors, whose sum is σ = 42111314. Its totient is φ = 42111312.

The previous prime is 42111287. The next prime is 42111341. The reversal of 42111313 is 31311124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38787984 + 3323329 = 6228^2 + 1823^2 .

It is a cyclic number.

It is not a de Polignac number, because 42111313 - 2⁵ = 42111281 is a prime.

It is not a weakly prime, because it can be changed into another prime (42111343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21055656 + 21055657.

It is an arithmetic number, because the mean of its divisors is an integer number (21055657).

Almost surely, 2^42111313 is an apocalyptic number.

It is an amenable number.

42111313 is a deficient number, since it is larger than the sum of its proper divisors (1).

42111313 is an equidigital number, since it uses as much as digits as its factorization.

42111313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72, while the sum is 16.

The square root of 42111313 is about 6489.3230001287. The cubic root of 42111313 is about 347.9094784815.

Adding to 42111313 its reverse (31311124), we get a palindrome (73422437).

It can be divided in two parts, 42111 and 313, that added together give a palindrome (42424).

The spelling of 42111313 in words is "forty-two million, one hundred eleven thousand, three hundred thirteen".